The All Important -te Form (irregular verbs) Irregular verbs, as you know, do not follow the language rules set for it. A Turkish example is Saatte (on the hour. Turkish has irregular nouns, no irregular verbs) By the rules, it should be saatta, but that is another word. English has more irregular verbs that Japanese and enough that we can count on our hands, if that hand was holding a calculator. Hold should be holded, but it is held. Go should be goed, but we say went. Come should be comed, but we use came. these are irregular. Japanese is similar. Iru is actually a irregular verb because it should be one-step, but is treated like a five-step; iru-ite-ita-imasu. It should be ite-iru-iimasu, but iu/itte (to say) takes care of that with its -masu form as iimasu. Another Japanese verb is suru. Its forms are suru-shite-shimasu. It should be a one-step to make it suru-sute-sumasu, but that's a little hard to say, isn't it? Here's a good way to remember it: if the stems are the same, you have a One-step. Kimasu/kiru/kite. (1) Okimasu/Okiru/Okite. (1) if one to two of the stems are different, you have a Five-Step. Karimasu/Karu/Katte. (5) Okimasu/oku/oite. (5) If verbs appear that they should follow one of these types and it doesn't, it's irregular. (suru and iku are great examples I always give) Suru/shite/shimasuu. (irr.) Iku/ikimasu/itte. (irr.) You can also put -te forms in past tense form by changing -te, -tte, -de, -nde, to -ta, -tta, -da, -nda. Hope this helps.